Types of Mouse and Mouse Connectors
Types of Mouse Connectors
What is a mouse? A mouse is a device that controls the movement of the cursor (pointer) on a computers display screen. The plural of the mouse is mice. Some old mice have got two buttons, the right and left button while modern ones will have a third scroll button in between the two. To use the mouse, one points and clicks to issue instructions to the computer. It is an important part of the computer as it helps to make our working on the computer easy.
Who Invented The Mouse?
It was invented by Douglas Engelbart of Stanford Research Center in 1963 and then pioneered by Xerox in the 1970s. This invention came as a major break through in computer ergonomics.
A mouse connector is a dedicated socket or interface in the computer for connecting a mouse. Since the invention of the first personal computer by IBM back in 1981, different types of mouse connectors have been developed. Let us have a look at them.
A USB Mouse
Types of Computer Mouse Connectors
A. Bus Mouse
The first type of mouse was connected to the PC by the use of a bus, so it was actually being referred to as the bus mouse. It was used in the early days of the IBM-compatible personal computers.
It connected to the PC through a specialized bus interface implemented via an ISA add-in card. It was superseded by the serial mouse.
ISA Mouse Adapter
B. Serial Mouse
The serial mouse was connected to the computer via the serial port. A serial port is a physical communication interface through which information is transferred in and out of the computer bit by bit.
The serial port is a D-type 9 pin male port (DB9M) at the back of the motherboard. Its corresponding connector must then be a female connector for them to mate correctly. The serial mouse is obsolete.
The Serial Port
C. PS/2 Mouse
The PS/2 mouse is connected on the PS/2 port (green in colour).The PS/2 mouse connector is a 6-pin mini-din connector designed in 1987. It superseded the serial connectors. Its name is derived from the IBM's personal systems/2 series of personal computers, which were introduced in 1987.
This PS/2 mouse port first featured in these PS/2 systems and continued being used in newer designs even after the PS/2 systems were no longer in production.The colour code for the PS/2 port for most computers is usually green.
The PS/2 Ports
D. USB Mouse
The physical shape and appearance of the USB mouse is similar to the others. The only difference is the connector that connects to a USB port on the back of your PC.
The Universal Serial Bus has to come to replace the PS/2 ports, though most of the computers still have the PS/2 ports. This industry standard was developed in mid 1990s. It defines the cables, connectors and communication protocols for connection and communication between computers and attached peripheral devices.
The USB port also provides power to the attached device hence eliminating the need for power connectors. It was purely designed to standardize the connection of computer peripherals like mice, keyboards, digital cameras, smart phones, PDAs, Video game consoles, removable disk drives etc.
The USB ports supports hot plugging where you connect or remove a device without turning off your computer. It also supports daisy chaining where you can connect 127 USB devices in a single port through the use of a USB hub.
The USB Ports
E. Wireless Mouse
This is the latest type of mouse that does not use a cable to connect to the back of your computer. It is a neat type of mouse to use because it eliminates the clutter of cables on your desktop.
Some of the wireless mouse can connect via a USB receiver while others make use of bluetooth connection. The mouse is powered by a pair of batteries, usually AA type.
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© 2012 Patrick Kamau
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